trizen
f2bf689bee
new file: oeis-research/Amiram Eldar/Number of primitive abundant numbers (A071395) < 10^n/generate.sf
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| Even numbers k such that k^2 - 1 is a powerful number | 3 ماه پیش | |
| Solutions to sigma(n)+7 = sigma(n+7) | 1 سال پیش | |